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748369 = 5771297
BaseRepresentation
bin10110110101101010001
31102000120101
42312231101
5142421434
624012401
76234556
oct2665521
91360511
10748369
11471296
12301101
1320282b
14156a2d
15ebb14
hexb6b51

748369 has 4 divisors (see below), whose sum is σ = 750244. Its totient is φ = 746496.

The previous prime is 748361. The next prime is 748379. The reversal of 748369 is 963847.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 744769 + 3600 = 863^2 + 60^2 .

It is a 3-Lehmer number, since φ(748369) divides (748369-1)3.

It is a cyclic number.

It is not a de Polignac number, because 748369 - 23 = 748361 is a prime.

It is a super-2 number, since 2×7483692 = 1120112320322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (748361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72 + ... + 1225.

It is an arithmetic number, because the mean of its divisors is an integer number (187561).

2748369 is an apocalyptic number.

It is an amenable number.

748369 is a deficient number, since it is larger than the sum of its proper divisors (1875).

748369 is a wasteful number, since it uses less digits than its factorization.

748369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874.

The product of its digits is 36288, while the sum is 37.

The square root of 748369 is about 865.0832329898. The cubic root of 748369 is about 90.7901213159.

The spelling of 748369 in words is "seven hundred forty-eight thousand, three hundred sixty-nine".

Divisors: 1 577 1297 748369